Lenze EVS93xx FlyingSaw - Manual (Page 103)

FlyingSaw
Description of the function blocks
Prepared Solution Servo PLC / ECSxA 1.1 EN 10-5
10.3 Function block RatioNormFlyingSaw
This function block calculates the normalisation factor for the flying saw as a function of the
machine parameters. The calculation is only allowed to be made in the cyclic task, as fractional
rational numbers are processed.
Task information
Can be called in: Cyclic task Time-controlled task
(INTERVAL)
Event-controlled task
(EVENT)
Interrupt task
Inputs (Variable type: VAR_INPUT)
Identifier Data type Value/meaning
bExecute BOOL Perform calculation
¾ If the factor is to be calculated, this input must be activated
FALSE ->TRUE Triggers a calculation
dnScaleWheel DINT Circumference of the measuring wheel
¾ 10000 = 1.0000 [unit]
dnPulseSensor DINT
Number of pulses from the encoder at the measuring wheel
¾ 10000 = 1.0000 [inc/rev]
dnFeedConstant DINT Feed constant
¾ 10000 = 1.0000 [unit/rev]
wGearNum WORD Gearbox factor numerator
wGearDen WORD Gearbox factor denominator
dnDFINConstant DINT DFIN master frequency constant (C0425/000)
¾ Entry is made in [inc/rev]
Outputs (Variable type: VAR_OUTPUT)
Identifier Data type Value/meaning
bCalculated BOOL Status signal "Factor calculated"
dnNormalizationNum DINT Value for the numerator
dnNormalizationDen DINT Value for the denominator